To let your customers buy one item at a time, put a "PayPal Buy Now" button on your Prestashop.
Your customers then are able to buy an item just with one click.

Vorteile und Modulbeschreibung

After successfully purchasing - module automatically create a order and you easily find it in
Prestashop admin panel. You do not need more to connect to the Paypal account and check new
orders. If anonymous users are buying from your store, the module has feature create new account
by Paypal payment data.
Accept credit cards, debit cards, and PayPal payments right away. There are no monthly, set-up, or
cancellation fees and only low transaction fees. Buyers don’t need a PayPal account to pay you. In
order to access payments you receive, you will need a Premier or Business PayPal account. Improve
buyer experience – with customizable buttons and secure payments, happy customers become
repeat customers.

The installation of module is very simple. Login to Prestashop admin panel, click on “Modules” tab.
Then click “Add a new module” link and upload "Paypal bu now" module. After this just click “Install” button and it is done. Then you need insert PayPal account ID (Module page > Settings > PayPal account ).